Answer:The importance of sample size calculation cannot be overemphasized. A research can be conducted for various objectives. A smaller sample will give a result which may not be sufficiently powered to detect a difference between the groups and the study may turn out to be falsely negative leading to a type II error.
Given a polynomial p(x) with leading coefficient
and solutions
, we have

That's why we have to find the solutions first. We complete the square by adding 3 to both sides:

From here, we continue by taking the square root of both sides:

So, the two solutions are

Which yields the factorization

Answer:
Why would you ask this in the math area?
From this equation C°=[F°-32]÷1.8
F°=158×1.8 +32=316.4°